JP2

Writable

image

The JPEG 2000 file format (JP2 file format) provides a foundation for storing application specific data (metadata) in association with a JPEG 2000 codestream, such as information which is required to display the image. The JP2 file format encapsulates the JPEG 2000 codestream along with other core pieces of information about that codestream. The building-block of the JP2 file format is called a box; all information contained within the format is contained in boxes. There are several different box types; some boxes contain other boxes. The binary structure of a file is a contiguous sequence of boxes. The start of the first box is the first byte of the file, and the last byte of the last box is the last byte of the file.

Identify it

Extensions	`.jp2`
MIME types	`image/jp2`
Signatures	`0000000c6a5020200d0a870a` at byte 0 (JPEG2000)
PRONOM	`x-fmt/392`
Wikidata	`Q27979401`
Library of Congress	`fdd000143fdd000167fdd000168fdd000195fdd000197fdd000212fdd000214fdd000169fdd000193`
Apple UTI	`public.jpeg-2000`

Not sure your file is this? Identify it from its first bytes, in your browser.

Open it

DevILOpen sourcereads and writes · GNU Lesser General Public License, version 2.1
GDALOpen sourcereads and writes · MIT License
ImageMagickOpen sourcereads and writes · ImageMagick License
ImageMagick (WebAssembly)Open sourcereads and writes · Apache-2.0
libexiv2Open sourcereads and writes · GNU General Public License, version 2.0 or later
OpenJPEGOpen sourcewrites · 2-clause BSD License
AbydosOpen sourcereads · GNU Lesser General Public License
ConverseenOpen sourcereads · GNU General Public License, version 3.0
digiKamOpen sourcereads · GNU General Public License, version 2.0 or later
ExifToolOpen sourcereads · Artistic License / GNU General Public License, version 1.0 or later
GIMPOpen sourcereads · GNU General Public License, version 3.0
imageioOpen sourcereads · 2-clause BSD License
JHOVEOpen sourcereads · GNU Lesser General Public License
KolourPaintOpen sourcereads · BSD licenses
KPaintOpen sourcereads · BSD licenses
PhotoRecOpen sourcereads · GNU General Public License
TesseractOpen sourcereads · Apache Software License 2.0
nomacsOpen sourcereads · GNU General Public License, version 3.0
OpenImageIOOpen sourcereads · BSD licenses
ABBYY FineReader OCR 7.0 Professional Editionreads and writes
ACDSeereads and writes · proprietary license
Acorn Image Editorreads and writes
Adobe Acrobat 9 Proreads and writes
Axialis IconWorkshopreads and writes
ENVIreads and writes · proprietary license
FastStone Image Viewer 5.2reads and writes
IrfanViewreads and writes · freeware
Kakadureads and writes
Mathematicareads and writes · proprietary license
PaintShop Photo Pro X3reads and writes
PaintShop Pro X4writes
PhotoEdit2writes
Q122459461writes
Q122522973reads and writes
Q207902writes · proprietary license
Q472277reads and writes · freeware
Q650922writes · freeware / proprietary license
WebPlus X7writes
Zoner Photo Studioreads and writes
Adobe Photoshop Elements 3.0reads and writes

And 32 more in the JSON record.

Convert it

Convert a file in your browser The steps marked “in browser” run on your machine; nothing is uploaded.

To	With	Fidelity	Command and losses
BMP 5.0	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
PNG	ImageMagick	Lossless	`convert in.jp2 out.png` Pixels kept; some metadata, colour profiles or layers may be dropped.
PNG	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
Quite OK Image Format	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
TIFF	ImageMagick	Lossless	`convert in.jp2 out.tif` Pixels kept; some metadata, colour profiles or layers may be dropped.
TIFF	ImageMagick (WebAssembly)	Lossless	in browser Pixels kept; some metadata, colour profiles or layers may be dropped.
PDF	ImageMagick (WebAssembly)	Partial	in browser The image is embedded in a PDF page.
AVIF	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
GIF 89a	ImageMagick	Lossy	`convert in.jp2 out.gif` Reduced to 256 colours.
GIF 89a	ImageMagick (WebAssembly)	Lossy	in browser Reduced to 256 colours.
ICO	ImageMagick (WebAssembly)	Lossy	in browser Icons are limited to 256 × 256 pixels.
JFIF 1.02	ImageMagick	Lossy	`convert in.jp2 out.jpg` Lossy compression.
JFIF 1.02	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
JPEG XL	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.
WebP	ImageMagick	Lossy	`convert in.jp2 out.webp` Lossy compression.
WebP	ImageMagick (WebAssembly)	Lossy	in browser Lossy compression.

Sources

From Converters (FFmpeg, ImageMagick, Pandoc, LibreOffice), WebAssembly engines (ImageMagick, FFmpeg, Pandoc, 7-Zip, GDAL, Assimp, resvg), Just Solve the File Format Problem (File Formats Wiki), PRONOM, Wikidata. Updated 2026-10-26.

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